A rare self-assembled Usonian Automatic home designed by Frank Lloyd Wright is on the market for $1.2m in St. Louis, Missouri.

The Theodore and Bette Pappas House was one of Frank Lloyd Wright’s forays into modular housing and was designed to be assembled by its owners. Although initially intended as a cheap and straightforward option for would-be homeowners, the DIY kits ultimately proved troublesome to build, with this particular home taking several years to finish.

It’s distinguished by its terracotta-coloured concrete bricks, which form walls, roof, and coffered ceilings. The four-bedroom modernist property – listed with Dielmann Sotheby’s Realty – is arranged over a single level, with open-plan living spaces filled with furniture designed by the architect, and included as part of the sale.

Other original features include bright red floor tiles and mahogany panelling. And despite its all-concrete skeleton, there’s no shortage of natural light in the home thanks to more than 500 glass insets that punctuate its exterior.

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